|Scientific Name:||Etheostoma crossopterum Braasch & Mayden, 1985|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Smith, K. & Darwall, W.R.T.|
|Facilitator/Compiler(s):||Hammerson, G.A. & Ormes, M.|
Listed as Least Concern in view of the fairly large extent of occurrence, large number of subpopulations, large population size, apparently stable trend, and lack of major threats.
|Range Description:||Range includes the middle and lower Cumberland River drainage, Kentucky and Tennessee (mostly below Caney fork but occurs in Obey River system and Barren Fork Collins River); middle Duck River system, including upper Buffalo River, Tennessee; Shoal Creek system (Tennessee River drainage, Tennessee and Alabama); and tributaries to the Mississippi River in western Tennessee (Reelfoot Lake, Bear Creek) and southern Illinois (Cache River) (Page and Burr 2011).|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||This species is represented by a large number of occurrences (subpopulations).|
Total adult population size is unknown but apparently quite large (likely greater than 100,000). This darter is common throughout much of its range (Page et al. 1992); locally abundant (Page and Burr 2011).
Trend over the past 10 years or three generations is uncertain but likely relatively stable.
|Current Population Trend:||Stable|
|Habitat and Ecology:||Habitat includes rocky pools and adjacent riffles of headwaters and creeks (Page and Burr 2011). This darter prefers small quiet streams with large flat rocks or bedrock bottoms; small populations occur in small gravelly streams and in larger streams along quiet margins and beneath undercut banks (Braasch and Mayden 1985). Spawning occurs in cavities under rocks; females attach eggs to undersides of stones (Braasch and Mayden 1985).|
|Movement patterns:||Not a Migrant|
|Major Threat(s):||No major threats are known.|
|Conservation Actions:||Currently, this species is of relatively low conservation concern and does not require significant additional protection or major management, monitoring, or research action.|
|Citation:||NatureServe. 2013. Etheostoma crossopterum. The IUCN Red List of Threatened Species 2013: e.T202471A2745149.Downloaded on 22 November 2017.|
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